chore: update delegate requirement from 0.9.0 to 0.10.0

Updates the requirements on [delegate](https://github.com/kobzol/rust-delegate) to permit the latest version.
- [Changelog](https://github.com/Kobzol/rust-delegate/blob/main/CHANGELOG.md)
- [Commits](https://github.com/kobzol/rust-delegate/commits)

---
updated-dependencies:
- dependency-name: delegate
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -27,7 +27,7 @@ serde_json = {version = "1.0.67", optional = true}
 bincode = {version = "1.3.1", optional = true}
 tskit-derive = {version = "0.2.0", path = "tskit-derive", optional = true}
 mbox = "0.6.0"
-delegate = "0.9.0"
+delegate = "0.10.0"
 
 [dev-dependencies]
 anyhow = {version = "1.0.66"}